Can you perform the same logic or different logic within one task or within one stage?

In Airflow, a task is intended to be an atomic unit of work, so it should perform a single logical operation. If you need to run multiple distinct operations, you can either create separate tasks or use a PythonOperator that calls multiple functions. A stage, in the context of a DAG, is a grouping of tasks that can run concurrently. Within a stage you can have many tasks, each with its own logic. Therefore, you typically keep one logic per task and use stages to orchestrate parallel execution.